Search results

It is generally acknowledged that this urban infrastructure system, being “the development foundation of urban economy and social undertaking” [2], consists of power, water recourse, water supply and drainage, communication, post and telecommunication, environment and disaster prevention.
It is gratifying that some professional planners have lucubrated the theories on urban sculptures and made quite a few achievements.

What's worse, their technological resources are rather disperse and have no perfect facilities for providing professional technological services, research and development and training.
Some of the citizens of other places in Harbin have moved to high buildings equipped with water, electricity and gas, while the workers here are still living in the easily-built houses established in the early start of the 1950s; the street blocks of their residence sees shrinking commercial services and business circles with each passing day.
Percent % Industrial land Residential land Land for public utility Land for storage Intercity transportation land Roads and squares Land for urban facilities Water area and other lands Land for special purposes Land for urban construction 544.88 491.57 81.40 101.17 65.39 191.36 38.10 75.33 3.45 1609.37 33.86 30.54 5.06 6.29 4.06 11.89 2.37 4.68 1.25 Current Situation of Land Distribution.

Because of the construction will have an impact on the surrounding environment, such as noise, changes, changes in underground water level, discharge for the foundation of mud and water or use of chemical pesticides on groundwater pollution, so the choice of construction methods and treatment method must be fully taken into account.
Select this article is representative of 30 experts and personnel determine the weights of evaluation factors of soft soil Foundation treatment technology, was consulting both geo-technical personnel of scientific research, design, construction and management of personnel, their experience, familiar with professional knowledge and management of soft soil Foundation treatment, it has a full representation, evaluation results has higher credibility.

An independent code design system for offshore wind turbines at home has not yet been formed because of sophisticated effects of ocean meteorological conditions, hydrologic conditions and geological environment.Monopile foundation construction is one of the difficulties of the offshore wind farm construction due to involving multiple professional fields.
The main reason is that horizontal environmental loads are main components in overall loads,such as wave load, water ice load and wind load, etc. 3）Results of fatigue analysis When carrying on the fatigue analysis, element shell 63 is used to simulate the transition connection section and the pile foundation .
Such type can avoid the shortcoming of soft-soft type due to too close frequency between wave frequency and natural frequency on the one hand, on the other hand also can avoid the shortcoming of rigid-rigid type due to too high overall stiffness,which may cause the excessive waste of investment. 2) Horizontal environmental loads are main components in overall loads,such as wave load, water ice load and wind load, etc.The design of monopile foundation for offshore wind turbines is mainly controlled by foundation horizontal bearing capacity and deformation, generally not by vertical bearing capacity. 3)For onshore wind turbines,the fatigue of pile-cap structure can be often satisfied if ignored.however, for offshore wind turbines,its fatigue analysis must be performed due to the long cantilever of the transition section.

It usually consists pollution control engineering on water, air, solid wastes, physical pollution, as well as biological environment restoration.
Through the collection, the database specialized in every aspects of the environmental engineering according to professional classification in the information collection system, such as water pollution control database, air pollution control database and so on.

Blast Wave Effect on Apparatus and Propagation Laws in Dry Sand in Geotechnical Centrifuge Model Tests Yi Kai Fan1,a, Xiang Qian Liang2,b, Xin Huang1,c, Xue Dong Zhang2,d 1School of Transportation Science and Engineering, Beihang University, Beijing 100191, China 2Department of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100044, China ayk_fan2006@163.com, bliangxiangqian@126.com, chx2000@buaa.edu.cn, dytzxd@iwhr.com Keywords: Geotechnical centrifuge apparatus, Model tests, Explosion, Blast waves, Dry sand Abstract. 7 geotechnical centrifuge model tests for buried explosion in dry sand were investigated by using 450 g-t geotechnical centrifuge apparatus.
The water content of the tested sand is close to 0.
London: Blackie Academic and Professional, 1995

Through professional discussion and analysis, we determine the priority relationship value of completed projects cai, as the Table2: Table 2 Engineering characteristics Priority relationship No.
A1 A2 A3 A4 A5 Foundation Bricks of base Reinforced concrete foundation Pile foundation reinforcement reinforced concrete strip foundation Reinforced concrete strip foundation Reinforced concrete strip foundation cai: 1 cai: 0.68 cai: 0.66 cai: 0.81 cai: 0.81 Structure Brick and concrete structure Prefabricated framework board Full cast frame work Frame shear structure Brick and concrete structure cai: 0.58 cai: 0.82 cai: 0.43 cai: 0.24 cai: 0.58 Wall decoration Dry wall Dry stone stick Water brush Face brick Drywall cai: 1 cai: 0.66 cai: 0.85 cai: 0.91 cai: 1 Window forms Wood windows Plastic windows Aluminum windows Aluminum persian blinds Aluminum windows cai: 0.56 cai: 0.82 cai: 0.85 cai: 0.89 cai: 0.85 External works Hollow brick Standard brick Block Reinforced concrete bulkhead Block cai: 0.78 cai: 0.64 cai: 0.83 cai: 0.58 cai: 0.83 Room combination One room and one hall Two rooms and one hall Two rooms and
Anhui Water Science and Technology, 2004, (4): 17 to 18.

The precipitate was filtered and washed with ethanol and deionized water to eliminate the chlorine ion, and finally washed with acetone.
Firstly, dissolving a certain amount of Eu(AA)3 and 0.3w% AIBN in reaction monomers of 0.07mol MMA, 0.03mol HMA in glass tube, then exhausting the oxygen at vacuum, sealing the tube and putting into the water bath for 48 h at 45˚C.
Acknowledgment This work was sponsored by the NSF of China (20774038) and advanced professional faculty foundation of Jiangsu University (06JDG061).

Table 1 Laws and rules about construction waste treatments Serial number Promulgated department Time Names of laws and rules Main aims 1 Ministry of Construction January 20, 2003 Urban construction trash and engineering waste management regulations(drafts) In order to standardize the urban construction rubbish and engineering waste treatment market and to promote the construction waste recycling and reducing Ministry of Chinese construction delegated Urban Environment and Health Association Waste Management Professional Committee to revise the Urban Construction Trash Management Regulations. 2 Standing Committee of the National People\'s Congress December 29, 2004 Law of the Peoples Republic of China on prevention of environ mental pollution caused by solid waste (Amended in 2004) In order to prevent the environment pollution by solid waste and to ensure people healthy the law was enacted. 3 Ministry of Construction March 23, 2005 Rules of Urban construction waste management In order
In 2008 Zuo Fuyun researched the construction wastes were produced the water permeable bricks.
He discussed the aggregate size, water-lime ratio and water reducer, fly ash, and silicon powder amounts had effect on the permeable brick intensity and permeable coefficient of the water permeable bricks[26].
Study on the Main Performance of Regenerated Concrete, Journal of north china institute of water conservancy and hydroelectric power, (1998)
Study on the water permeable brick used in the construction waste, Kunming polytechnic university degree of master thesis, (2008)

It is originated in Shan County, Shandong Province, a longevity place with high-quality soil, water and natural environment, it is years trailing herb, the tuberous root is spherical or irregular long circle, with the length of 3-8cm, the skin is khaki and has intermittent cyclic texture, the flesh is white and delicate.
Lanthanum solution: Weigh 25g lanthanum oxide and add 75ml hydrochloric acid, constant volume to 1L by triple distilled water and prepare to 25g·L-1 solution.
The experiment water is triple distilled water.
Tab·1 Program of microwave assisted digestion Digestion power /W Temperature /℃ Pressure /Mpa Retention time /min 600 100 0.5 10.0 600 140 1.0 15.0 800 180 1.5 10.0 Experiment methods Pretreatment of mogroside Select 50g Huafu Brand mogroside, produced by Shan County Tianxiang Mogroside Professional Cooperative, clean and slice with clean stainless steel knife, place it into oven for 2h under 80℃ condition, cool and grind with universal grinder, then standby after 100-mesh sieve’s processing.
After completing digestion, take out, water bath and after removing acid, transfer the sample solution into 25ml volumetric flask to constant volume.